System Administrator Level I-III

System AdministratorTAP Engineering is seeking System Administrators at multiple experience levels (I, II, III) to support large-scale, mission-critical enterprise computing environments. This role is responsible for system operations, maintenance, troubleshooting, and performance optimization across compute, storage, and network platforms. The ideal candidate thrives in a fast-paced, 24/7 operational environment and works effectively with cross-functional technical teams to ensure system reliability, performance, and availability.Technical EnvironmentLinux operating systems: Red Hat, CentOS, SUSE, and vendor-specific platformsEnterprise compute environments, including clustered and high-performance systemsShared and distributed storage platformsHigh-speed networking and interconnect technologiesServer, storage, and network infrastructureKey Responsibilities (All Levels)Implement, maintain, troubleshoot, and sustain enterprise IT systemsPerform day-to-day system operations, monitoring, and incident responseSupport system deployments, upgrades, and transitions to productionProvide Tier 1, Tier 2, and Tier 3 support based on experience levelEscalate issues appropriately and communicate status to stakeholdersOptimize system performance, capacity, and resource utilizationFollow established policies, procedures, and operational best practicesLevel DifferentiationSystem Administrator I (Junior / Entry-Level)Provide Tier 1 support and routine system administrationAssist users with system access and basic issue resolutionSupport hardware and software refresh initiativesPerform standard maintenance tasks under guidanceSystem Administrator II (Mid-Level)Provide Tier 2 and Tier 3 support for moderately complex issuesPerform in-depth troubleshooting and root cause analysisConfigure, manage, and maintain Linux, Unix, and Windows systemsTroubleshoot system integrations, network components, and hardware issuesDocument findings and provide analysis for escalated incidentsSystem Administrator III (Senior / SME)Serve as a technical lead and subject matter expertResolve highly complex system, hardware, and software integration issuesSupport system design, architecture, and infrastructure planningAnalyze system interdependencies to improve operational reliabilityMentor junior administrators and lead major incident response effortsEducation & Experience RequirementsSystem Administrator I: 3+ years with a degree or 8+ years without a degreeSystem Administrator II: 5+ years with a degree or 10+ years without a degreeSystem Administrator III: 10+ years with a degree or 15+ years without a degreeRequired QualificationsActive TS/SCI with Full Scope PolygraphDoD 8570 IAT II certificationExperience administering Linux-based systemsStrong troubleshooting, documentation, and communication skillsAbility to work effectively in a 24/7 operational environmentBenefits Overview TAP Engineering offers a comprehensive and competitive benefits package, including:Paid Time Off: 15–25 days annually based on tenure, plus 11 paid holidays (never use-or-lose)Retirement: Up to 15% employer contribution to a 401(k) through match and profit sharingMedical Coverage: Free medical insurance for employees; optional buy-up plans for dependentsDental & Vision: Employer-paid plans with optional enhancementsInsurance Coverage: Employer-paid life insurance, AD&D, short-term disability, and long-term disabilityFlexible Spending Accounts: Healthcare and dependent care FSAsTuition Reimbursement: Up to $36,000 per year for approved courseworkAdditional Benefits: Employee Assistance Program, wellness incentives, discount programs, virtual care, prescription savings, and travel supportPerformance-Based Rewards: Merit increases, performance bonuses, and referral bonusesClearance Requirement This position requires the ability to obtain and maintain a Top Secret/SCI security clearance with Polygraph, based on a current Single Scope Background Investigation (SSBI/SBI). Clearance and polygraph processing are conducted by the U.S. Government. Factors considered include, but are not limited to:U.S. citizenshipFavorable criminal history reviewEducation verificationDrug and substance use reviewCredit history reviewSubject interviewAdditional Information By submitting your resume, you acknowledge that TAP Engineering may share your application materials with its subsidiaries and affiliated companies for consideration for other available positions. TAP Engineering is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other status protected by law.